Copy-holder for type-writers



(No Model.) 2 Sheets-Sheet '1. J. CHASE. COPY HOLDER FOR TYPE WRITERS.

No. 460,847. Patented Oct. 6, 1891.

(No Model.) 2 She-ets-Sheet 2. J. CHASE.

COPY HOLDER FOR TYPE WRITERS. No. 460,847. Patented Oct. 6, 1891.

UNITED STATES JAMES CHASE, OF

ROCHESTER, NE\V YORK.

.COPY-HOLDER FOR TYPE-WRITERS.

SPECIFICATION forming part of Letters Patent N 0. 460,847, dated October 6, 1891.

Application filed October 22, 1889. Renewed February 10, 1891. Serial No. 380,876- (No model.)

To all whom it may concern.-

Be it known that I, J AMES CHASE, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have in vented new and useful Improvements in Copy-Holders for Type-VVriters, of which the following is a specification.

In my application for Letters Patent filed August 23, 1889, Serial No. 321,734, I describe and show a copy-holder for type-writers which comprises a rotating paper-moving cylinder operated by a key-lever to advance the sheet of paper or copy in relation to a line-marker that normally stands stationary along one side of the cylinder.

The object of my present invention is to improve the prior apparatus or machine by providing novel means for rotating the cylinder to move the copy; and to such end the invention consists, among other things, in the combination of a rotating cylinder having at one end a projecting annular rim or flange and adapted to support and advance the copy, an arm, a key-lever for moving the arm, and a rotating friction-roller moved by the arm for engaging the annular rim or flange of the cylinder when the key or lever is moved to rotate said cylinder, and thereby move the copy the required distance to bring another line in relation to the line-marker.

The invention is exhibited by the accompanying drawings, in which Figure 1 is a perspective view, partly in section, of the copy-holder embodying my improvement. Fig. 2 is a detail end elevation, omitting portions of the main frame to more clearly show the friction-roller dog. Fig. is a similar view looking at the opposite end of the paper-moving cylinder. Fig. at is a detail view of the flanged arm that acts directly on the friction-roller dog. Fig. 5 is a detail sectional View showing the flarige on the main frame for the rolling locking device. Fig. 6 is a detail central sectional view to show the construction of the cylinder-journals; Fig. 7, a detail side view of a portion of one end of the main frame, showing means forvarying the pressure of the presser-roller; and Fig. 8, a detail sectional view taken on the line 00 as, Fig. 7.

In order to enable those skilled in the art to make and use my invention, 1 will now describe the same in detail, referring to the drawings, wherein- The numeral 1 indicates a base or stand supporting the main frame, which comprises a horizontal bar 2, provided at each end with a standard 3, of any form or pattern suitable for the conditions required. The main frame may be stationary on the base or stand, or it may be journaled to turn thereupon, if desired. A copy supporting and moving cylinder 4 is journaled at its ends to the end standards, as by pivots or journals 5, in any desired manner, and at one end the cylinder is formed or otherwise provided with an annular projecting flange (i for the action of a clutch-dog, hereinafter explained. The main frame is provided with two lateral studs '7, around which are coiled the lower end portions of two spring-arms 8, the upper extremities of which support the ends of a rollershaft 9, having one or two presser-rollers 10,

which act on the copy to press it on the copy moving the cylinder. The main frame is provided at one end with a pivot in the form of a set-screw 12, to which is hung one end of a line-marker 13, having its opposite end bent to form a spring-catch to engage and disengage a portion of that end of the main frame which is opposite the pivot-screw in such manner that by releasing the catch the line-marker can be swung down in front of the apparatus to be out of the way when introducing the copy between the cylinder and the presser roller or rollers. The line-marker is preferably composed of a flexible strip of steel of suitable thickness, and the presserroller shaft may be of wire adapted to rotate, or it may be fixed in the spring-arms and the roller or rollers made to turn on instead of with the shaft.

The set-screw 12 is adjustable in its bearing for the purpose of varying the distance of the line-marker from the surface of the papermoving cylinder, for by adjusting the setscrew in or out the line-marker is correspondingly moved in or out.

The end of the main frame adjacent to the flange of the cylinder is provided with a stud 14, on which is pivoted the key-lever 15, which is made, as here shown, as a bell-crank with one arm approximately perpendicular and the other horizontal and furnished with tended around at the upper end in the form I of a hood, but this is not indispensable. I

A dog composed of a friction-roller 20 is arranged in the space between the segmental flange and the annular rim or flange on the cylinder, and this roller is adapted to axially rotate and also to rise andfall. The space between the flange on the arm and the rim or flange on the cylinder converges toward the lowermost portion of the cylinder by reason of the flange on the arm being placed eccentric to the axis of the cylinder. In consequence of this. arrangement when the key or lever 15 is depressed to draw forward the lower end of the arm 18 the flange on the latter bears against the roller and causes it to bite the inside surface of the flange on the cylinder and at the same; time to rise upward, thereby rotatin g the cylinder and moving the copy-sheet the required-distance. 1 hen the key or lever is released and with its flanged arm moves backward to its normal position, the frictionroller'rotates and rolls by gravityand follows up the backward movement of thearm.

As the arm 18 is loosely hung on one of the journals of the cylinder, it will be evident that the flange on the arm and the flange of the cylinder bear the same relative distance or position to each other in the swinging movements of the arm forward and backward.

The friction-roller will follow up the least backwardmovementof the arm, whereby the mechanism is adapted for any desired throw of the copy-moving cylinder.

A spiral or other spring 21 isconnected at. one end with the perpendicular arm of the key-lever: and at the other end with a stud 22 on the main frame for retracting the lever fter its horizontal arm has been depressed. A stop-lug 23 on the main frame is arranged in the path of the key-lever to limit its backward movement under the influence of the spring.

The copy-holder is very useful for typewriters, for it can be so placed that thekeylever will stand in close proximity to the keyboard of the machine, whereby the action of the hand to line the copy is in correspondence with the action of the hand in' transcribing on the type-Writer, thus permitting great speed to be attained with the least possible danger of errors.

The stroke of the key-lever can be varied according to the distance between the lines of the copy by means of a stroke-limiting stop, which, as here shown, is composed of an adjustable screw 24, having a thumb-piece and engaging a screw-threaded socket 25 on the main frame. It is obvious that by adjusting the screw inward the stroke of the key-lever is shortened to feed close-lined. copies, while the converse is the case if the screw be ad-' justed outward.

Vhile I have described the copy-holder as particularly useful in connection with type- Writers, it is'quite obvious that it can be otherwise employed.

To prevent a retrograde movement of the copy-moving cylinder while in operation I provide a rolling locking device at the end of the cylinder which is opposite the cylinder-rotating mechanism. The rolling looking device comprises a disk or roller cap. ble of axially turning when the cylinder is rotated to advance the copy, butis jammed and held against rotation by the least retrograde movement. of the cylinder to thereby lock the cylinder against back motion by its frictional contact with the disk or roller. The roller acts upon the inner surface-of aprojecting annular rim or flange 26 on the cylinder, and an inwardly-projecting flange 27 onthe main frame, so arranged that the space between the, rim orflange on'the cylinder and the flange ofthe frame converge downwardly in such manner thatthe ball can, as it were, rise,

but is instantlyjammed if the cylinder tends to movev backward.

I I am Well awarethat roller friction-clutches have heretofore been employed for rotating wheels; but I am not aware that a frictionroller adapted to rotate axially and to rise .and fall in a circular path has been combined with; an annular rim on a copy-moving cylinder and a swinging arm operating the roller and connected with a key-lever that is supported by and moves on a main frame which supports the copy-moving cylinder.

In this type of machines it is desirable to provide simple means for preventing the baseplate from marring the desks or other furniture on which they are placed, and this I accomplish by constructing the lower, face of the base-plate with an annular groove containing a flexible ring, such as a braided cord of textile material or rubber.

The journals 5 of the cylinder are preferably applied by forming a hole in the center of one end of the hollow cylinder and passing therethrough a cylindrical pin having a head which restsagainst the. inside of the cylinder-head, as shown in Fig. 6.

It is sometimes desirable to change the pressure of the presser rolleror rollers for light or heavy copy, and to accomplish this I provide means for adjusting the tension of the springs 28 of the arms 8, that carry the roller-shaft 9. A socket-piece 29, having a flange 30, is journaled on the stud 7, and such flange 30 is provided with a circular row of recesses 31 and a stud 32. The, end 33 of the coiled spring 28 bears against the stud 32, and any one of the recesses 31 can be made to engage a pin 34 011 the main frame TOO IIO

in such manner that by moving the socketpiece to disengage the flange 30 from the pin 34 and then rotating the socket-piece in the proper direction the tension of the coiled spring is adjusted, eitherlessening or increasing its tension, after which the proper recess 31 of the flange 30 is engaged with the pin 34. by this adjustment of the spring tension the required pressure of the roller or rollers for light or heavy copy can be obtained with ease and facility. The construction also provides for applying the presser-roller and its concomitants without marring the nickel or other ornamental parts of the main frame.

Having thus described my invention, what I claim is 1. A copy-holder for type-writers, consisting of a main frame, a rotating copy supporting andmoving cylinder having at one end a projecting annular rim, a keylever supported by and moving on the main frame, and a friction-roller engaging With the annular rim of the copy-moving cylinder and adapted to axially rotate and rise and fall as the keylever moves on the main frame, substantially as described.

2. A copy-holderconsistin g ofa main frame, a rotating copy supporting and moving cylinder, a swinging arm, a rotating and rising and falling friction-roller moved by the arm into engagement with a part of the cylinder, and a key-lever supported by and moving on the frame and jointed to the swinging arm, substantially as described.

3. The combination, in a copyholder for typewriters, of a line-marker, a copy-moving cylinder having an annular rim, a swinging arm, a dog moved by the arm to engage the cylinder-rim, and a key-lever forswinging the arm, substantially as described.

E. A copy-holder for type-writers, having a copy-moving cylinder and cylinder-rotating mechanism, and a rolling locking device for preventing retrograde movement of the copymoving cylinder, substantially as described.

5. A copy-holder for type-writers, consisting of a main frame having a flange, a copymoving cylinder having an annular rim at one end, cylinder-rotating mechanism, and a rolling locking device between the cylinderrim and the flange on the frame to prevent retrograde movement of the cylinder, substantially as described.

6. The combination, in a copy-holder, of a rotating copy supporting and moving cylinder, a shaft carrying a presser-roller, springs which act on the shaft to force the presserroller toward the rotating copy supporting and moving cylinder, and adjusting devices for adjusting the tension of the springs at will to vary the pressure of the presser-roller as required for light or heavy copy, substantially as described.

7. The con1bination,witha main frame and a copy -moving cylinder supported by the frame, of a presser-roller-carrying shaft, a coiled spring acting on the shaft, and an ad justable socket-piece for varying the tension of the spring, substantially as described.

In testimony whereof I have affixed my signature in presence of two witnesses.

JAMES CHASE.

Witnesses: G110. S. RILEY, WM. 0. LowREY. 

